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Sumario Cuadro de principios de motilidad intestinal $7.99   Add to cart

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Sumario Cuadro de principios de motilidad intestinal

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Cuadro de principios de motilidad intestinal

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  • April 4, 2024
  • 1
  • 2020/2021
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PRINCIPIOS GI ONDAS POTENCIAL ESPIGA
LENTAS EXITACIÓN:-> DESPOLARIZACION
≠PA de fibras nerviosas - distención del musculo liso
No son PA, son cambios ondulantes -Acetilcolina
EL TUBO DIGESTIVO (TD) 3x min estomago
Cel. Cajal del -duración corta
-SNP
Musc Liso -requiere rápida entrada de Na
TIENE SU PROPIO SN-> 9x min íleon INHIBICION:-> HIPERPOLARIZACION
A diferencia de musc liso GI
12x min duodeno -sns
Funciona solo pero
-noradrenalina
también recibe
Ingreso de Na -> CONTROLA PA no lo induce
influencias del

CONTRACCIÓN DEL MUSCULO

SNA
PLEXO AUERBACH: SNS-> INHIBIDOR
-+ externo entre 2 musc SNP-> EXITADOR
-↑ contracciones
-Inhibe: esfínter pilórico e
FIBRAS SENSITIVAS AFERENTES: Causa excitación
ileocecal.
Sus cuerpos se estimulan por: /inhibición
-irritación mucosa
-distención
PLEXO meissner: -Sustancias qcas REFLEJOS GASTRINTESTINALES
-+ interno en submucosa
-actúa sobre secreción y
REFLEJOS QUE VAN DEL INTESTINO A GANGLIOS SIMPATICOS Y VUELVEN al TD:
absorción. REFLEJOS INTEGRADOS X COMPLETO EN TD DEL
-R. GASTROCOLICO: estomago-> induce evacuación COLON
PARED: controlan
-R ENTEROGASTRICO: ID e IG -> inhibe motilidad y secreción estomago
-secreción
-RCOLICO ILEAL: COLON-> inhibe vaciamiento del ID
-peristaltismo
-contracciones
-efectos inhibitorios




REFLEJOS QUE VAN DEL Intestino-> Médula Espinal/ TRONCO vuelven TD.

-R ESTOMAGO y DUODENO-> Tronco y vuelve
- REFLEJOS INHIBITORIOS TOTAL DEL TD POR DOLOR
-R DE DEFECACION: COLON y RECTO -> Médula Espinal -> vuelven a contracción.




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